Egg-tester



W. F. AND E. H. LOHSE.

EGG 158m.

APPLICATION FILED AUG.8. 1919.

Patented Feb. 10, 1920.

2 SHEETS-SHEET l.

W. F. AND E. H. LOHSE.

EGG TESTER.

APPLICATION FILED Aus. B, 1.9.19.

1,330, 1 99. mama Feb. 10,1920.

2 SHEETS-SHEET 2.

attentat! 4UNITED sTATEs PATENT ornion.

WILLIAM F. LOHSE AND ELMER Hr LOI-ISE, 0F OMAHA', NEBRASKA.

EGG-TESTER.

To all 1li/wm t muy conce/vi.'

'Be it known that we,-VV1LDIA1\I F. LoHsn andELMnR H. Loi-Isn, citizens of thel United States, residing' at Omaha, in the county of Douglas and State of Nebraska, have invented `certain new andfnseful Improvements in-Egg-Testers, oi' which the following is a specification. y

'fhisfinvention relates to aniinprovement in ani'egg tester having a somewhat similar construction to thatshown in U. S. Letters Patentv No.l 1,209,969, granted to William Humphery, dated'Dec.' 26, 1916, and subse# quently assigned'to applicants, andihas for its object to provide certain features relating to operation andi simplicity of parts round to be of great advantage, and consid# ered to' bea materialimprovement as compared with the construction shown in said Letters Patent. j

Y In the accompanying drawing fonninga part ofthe'present application, Figure 1 is airont view of the device. Fig. 2 is a sectional view through the case and reflector on line 2 2 of Fig. 1. Fig. 3 is a sectional i view through the case andV reflector on line of Fig.' 1f Fig. L.tis a viewillustrating an' electrical circuit. Fig; 5 is a view showing the inner side of the front wall of the case. Fig. is an enlargeddetail lShowing an adjustable switch-member. Fig. 7 isla rear end view of the reflector on an enlarged scale. Fig. 8 4is 'a sectional view on line' 848 of Fig. 7.

Referring. nowto the drawing for amore particular description, numeral 5 indicates the case of a portable egg tester, said case preferably being' constructed of material which is electrically non-conductive, and provided with a lid 6,*th`e front, upright wall a of the case below the lid, being pro# videdwith an opening 7. At Sis indicated a door for saidopening, andby meansof a pair of' spring-hinges 9: the doorwill nor` mally remain closed, and' will? substantially fill the opening. Upon the bottom of the case, adjacent to the door, are shown a pair of stops 10. Numerals 11 indicate flanges or projections provided for the lower part oi' the door, and, as described, th'ed'oon may be .swung inwardly against the ffor'ce of the springs b of thehingesQ, the stop-members 10, when engaged by said flanges, operating to Ylimit the arc of movement of the door.

Numerals 12 indicate a pair of apertures provided for the door, and suitably secured Specification of Letters Patent. PatentedFeb.-10, 1920.' Application mea August s, 1919'. sri'alNo. 316,063.

up'o'nthefdoor and projecting inwardly7 of.

tliecasefisareflector 13,'this being substantially; elliptical in cross-section, its diver gent end opening upon the apertures 12. At 14 is indicated an electric light'which is disposed'. within and secured to the collar c of the reflector, said light 14 being arranged in an electrical' circuit, energized by any suitable# means, the means hereinv shown being electric batteries y15.

Mounted upon the front, upright wallpa ofi thecase, abovethe door 8, is anelectrical contact-plate' 16 provided with a bindingpost 17. .Numeral 18 indicates van angularly formed bracket which is secured to the upper part of. the door, midway between the ends thereof, and having an upwardly projecting'arm al disposed adjacent to the plate 16, and mounted onthe arnrd is an electricall vcontact-piece or switch-member 19, preferably having Vthe form of a threadedpin.

The mounting of the -threaded pin 19 upon -the'bracketf is suchthat it may be adjusted; longitudinally, nuts 20 (best shown inFig'. 6)ibeingthreadedthereon at opposed sides of the arm Z of said bracket; and elec-v tric-ally connected with the binding-post 17 is anl electrical conductor 21 incommunication with a battery 15;

At 22is indicated an electricaly conductor incomnunication with the electric light 14 andl with one of the batteries 15,' and at 23 is indicated a. conductor in electrical cornmunication with the electric light and with the pintor switch-member 19.

The normal positions of parts are as shown in F ig'. 2, thedoor being closed, and the pin or electrical contact-piece 19being disposed closely adjacent to the plat'e`16, and there# fore', normally, theelectrical circuit will #be broken.

When in use, an operator manually-places the eggs partly within the apertures 12, and thereby. causes thel door to swing inwardly for engagement of the pin 19with the plate l 16, and-thereby the electricalcircuit will be established to cause the light' to'be reflected for inspection of the eggs, the springsb cans# ing the door'tob'ecome closed and causing theelectric'al circuitlto be'broken when the eggs are removed. v

The parts are so adjusted that a contact of the pin19 with theplate 16 will'be simultaneous with the engagement of the proj ections 11 with the stop-members 10, this be ing of advantage since the door is rigid and operates as a'rock-lever, and the stop-inembers operate to prevent said member 19 from being pressed against the plateV with unolue force.

Numerals 24; indicate rece-sses which are formedv in the wall of the reflector at the upper and lower sides thereof, and when the Y' flanges 25are secured to the door, these recesses provide draft apertures through Vwhich the air may move, to prevent undue heat within the reflector, and at 26 are indicated grooves `which are provided for the reflector, said grooves being voutwardly-divergent andformed in the parts of lesser curvature of the reflector and appearing above and below the lamp, each groove opening uponV or terminating at a recess 24.

It will be noted that when thereflectorfis secured to the door, the grooves 26 will be disposed ina plane midway between the egg-receiving apertures 12; and on account of this .construction the light will be ,reflected to great advantage, the wall of the inwardly extending part of each groove nearest to an aperture 12, operating to reflect the light in a direction of said aperture and tending to focalize the rays of light nearer' tothe center of said aperture than ordinarily, so that any defects appearing inv theV eggs'may be readily seen.

AWhat We claim as our inventionand .de-

sirelto secure by Lette-rs Patent is, Y vl. An egg testen-comprising, in combination with a casing having an upright Vwall Vprovided with an opening Vand an electrical contact-plate,adjacentto said opening,y a

. Y binding-post mounted on said electrical contact-plate, a door provided with apertures and mounted on the casing to permit swinging movements and disposed `in said opening, a reflector provided with an electric binding-post mounted on the electrical contact-plate, a door disposed within said openingand provided with egg receiving aper- Y tures,' said door having a hingeable mount-v ingupoirthe casing to permit a swinging movement inwardly thereof, springs'on said hinges to normally prevent a swinging movement of the door inwardly of the casing, a reflector provided with a lamp and mounted on the door, an electrical eontacts ypiece movable with the door for engagement withthe electrical contact-plate and an electrical circuit including elect-rica Conductors communicating with the binding- Y3. Anegg tester comprising-a casing having an upright. wall provided with an opening and an electrical contact-plate adjacent to said opening, a binding-post mounted on the electrical contact-plate, a door disposed within said opening and provided with a flange and alsoprovided with egg-receiving apertures, said doorV having a hingeable 'Y mounting at its upperend upon the casingl to permit a swinging' movementy inwardly thereof, springs on. said hingesv to normally resist a swinging movement of the door inwardlyof the easing, areflector provided with a lamp-and mounted on the door, Y

an electrical contact-piece movableV with the door for engagement with the electrical contact-plate, an electrical circuit including electrical conductors communicating with the binding-post, the lamp and'said contactpiece, and a stop-member for limiting the arc of movement in one 'direction of the door, said stop-member being mounted VVupon ythe casing adjacent to the flange of said door.l

4'. In an egg tester, a casing having an opening mits side wall and provided with an electrical contact-plate1 a binding-post mounted on the `contact-plate, a doorfprovided with a pairof apertures and disposed j post, the lamp, and said electrical contact- Y piece.

in said opening, hinges connecting the dooi with the casing to permit swingingniovements ofthe door, a reflector open at one Vof its ends, said reflector being approximately of` elliptical shape in cross-section andformed flaring toward its open end and provided with a ipairof Vrecesses opening upon opposed parts of its Vopen end, and also provided with a pair of grooves formed divergent toward-and opening upon said Vrecesses, al lamp `in* the4 'reflector midway bepiece movable withthe/door for engagement withls'aid electrical .contact-plate, anV electrical circuit,` including electrical conductors communicating with the binding-post, the

lamp and saidfelectrical contact-piece, andv means normally tending to resist a movement of the door'in` one direction.Y Y

In testimony whereof, we have affixed our signatures in presencev of two witnesses.`

WILLIAM F. LOI-ISE.V ELMER-H. LOI-ISE. Witnesses: Y

HIRAM A. STURGES,

ARTHUR H. STURGES.

icol i tweensaidvgrooves, an velectrical contactd 

